Long-term corrosion protection of mild steel by epoxy coating containing self-doped polyaniline nanofiber

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	Long-term corrosion protection of mild steel by epoxy coating containing self-doped polyaniline nanofiber
	Zhao, Haichao; Qiu, Shihui; Chen, Cheng; Zheng, Wenru; Li, Wei; Wang, Liping
刊名	SYNTHETIC METALS
	2017
卷号	229 页码:39-46
ISSN号	0379-6779
英文摘要	Sulfonated polyaniline (SPANI) with good processability and well-dispersion in common organic solvent was synthesized via the copolymerization of 2-aminobenzenesulfonic acid and aniline and was identified by UV-vis, Raman, X-ray photoelectron spectroscopy, X-ray diffraction and scanning electron microscopy. SPANI/epoxy composite coatings on the steel substrate were prepared for the anti-corrosive investigations in 3.5 wt% NaCl solution via electrochemical impedance spectroscopy and polarization curves. It turned out that composite coatings with SPANI exhibited excellent protective performance with high impedance modulus during the 120 days immersion while blank epoxy coating has been invalid after 80 days immersion. Finally, the passivation of steel substrate by SPANI containing composite coating was proved by the composition and morphology of the rust products beneath the coatings. It's concluded that self-doped SPANI enhanced the anti-corrosive property of composite coatings via forming a metal oxide film composed of Fe2O3 and Fe3O4.
公开日期	2017-12-25
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/13746]
专题	2017专题
推荐引用方式 GB/T 7714	Zhao, Haichao,Qiu, Shihui,Chen, Cheng,et al. Long-term corrosion protection of mild steel by epoxy coating containing self-doped polyaniline nanofiber[J]. SYNTHETIC METALS,2017,229:39-46.
APA	Zhao, Haichao,Qiu, Shihui,Chen, Cheng,Zheng, Wenru,Li, Wei,&Wang, Liping.(2017).Long-term corrosion protection of mild steel by epoxy coating containing self-doped polyaniline nanofiber.SYNTHETIC METALS,229,39-46.
MLA	Zhao, Haichao,et al."Long-term corrosion protection of mild steel by epoxy coating containing self-doped polyaniline nanofiber".SYNTHETIC METALS 229(2017):39-46.